Messages in this thread | | | From | tz@execpc ... | Date | Thu, 14 Jan 1999 16:48:45 -0600 (CST) | Subject | 2.2.0-pre alpha multia/UDB ide - infinite interrupts... |
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Tracing the problem further, it happens as soon as the init_irq (in ide-probe.c) does the restore_flags(flags) call which reenables interrupts. There is no handler defined yet, but something is causing an interrupt, so in ide.c in ide_intr, the line if ((handler = hwgroup->handler) == NULL || hwgroup->poll_timeout != 0) { will be true. There is another test for a shared interrupt which I don't know if it succeeds (but I tried bypassing the test). That should ack the IRQ and invoke the unexpected interrupt handler. If it does, it isn't having an effect. a printk at the top of this routine is continually running, so the interrupt is never turning off.
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